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Posted to commits@nuttx.apache.org by GitBox <gi...@apache.org> on 2022/08/31 09:13:34 UTC

[GitHub] [incubator-nuttx] zyfeier opened a new pull request, #6967: sched/semaphore: add sem_count temporary variable to improve performance

zyfeier opened a new pull request, #6967:
URL: https://github.com/apache/incubator-nuttx/pull/6967

   ## Summary
   
   Add temporary variable sem_count to improve sem post performance
   
   ## Impact
   
   Code Size:
   
   before:
   ```
      text	   data	    bss	    dec	    hex	filename
    109708	    224	  24940	 134872	  20ed8	nuttx
   ```
   after:
   ```
      text	   data	    bss	    dec	    hex	filename
    109708	    224	  24940	 134872	  20ed8	nuttx
   ```
   
   Performance:
   sem_post -> sem_wait (cycle count):
   before:
   `195`
   after:
   `192`
   
   ## Testing
   
   sabre-6quad:nsh


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[GitHub] [incubator-nuttx] xiaoxiang781216 merged pull request #6967: sched/semaphore: add sem_count temporary variable to improve performance

Posted by GitBox <gi...@apache.org>.
xiaoxiang781216 merged PR #6967:
URL: https://github.com/apache/incubator-nuttx/pull/6967


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